Ruby mengacak array
[1,2,3,4].shuffle => [2, 1, 3, 4]
[1,2,3,4].shuffle => [1, 3, 2, 4]
Lonely Curly Boi
[1,2,3,4].shuffle => [2, 1, 3, 4]
[1,2,3,4].shuffle => [1, 3, 2, 4]arr = [1, 2, 3, 4]
arr.sample # => 3 pick random number
arr.shuffle # => [3, 1, 4, 2]